Place bacon in a large skillet and cook over medium-high heat, turning occasionally, until evenly browned, about 10 minutes. Drain bacon slices on paper towels; crumble. Preheat oven to 400 degrees. Place a piece of aluminum foil over a baking sheet; spread fries in a single layer on baking sheet. Bake in preheated oven until golden brown and crisp, 15 to 20 minutes.